Visible-Light-Mediated Synthesis of Unsymmetrical Diaryl Sulfides via Oxidative Coupling of Arylhydrazine with Thiol
Golam Kibriya, Susmita Mondal, Alakananda Hajra*
*Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India, Email: alakananda.hajravisva-bharati.ac.in
G. Kibriya, S. Mondal, A. Hajra, Org. Lett., 2018, 20, 7740-7743.
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A metal-free visible-light-promoted oxidative coupling between thiols and arylhydrazines provides diaryl sulfides in good yields using a catalytic amount of rose bengal as photocatalyst under aerobic conditions at room temperature. This methodology is also applicable to benzo[d]thiazole-2-thiols, benzo[d]oxazole-2-thiol, 1H-benzo[d]imidazole-2-thiols, and 1H-imidazole-2-thiol.
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diaryl sulfides, photochemistry